名詞 native language:

1. the language that a person has spoken from earliest childhood

1. Karl Marx was born in Germany, and German was his native language.
   卡爾馬克思生于德國(guó)，德語是他的本族語。
2. Relating to or expressed in the native language or dialect.
   用本國(guó)語的關(guān)于或用本國(guó)語或方言表達(dá)的
3. My native language is Chinese.
   我的母語是漢語。
4. Chinese is my native language.
   漢語是我的母語。